Dust-collector.



L PATLNTLD 0017.16, 1906. s. H. sToLTzPUs n A. s. WOLF.

y DUST COLLECTOR.

.APBLIOATIOLQLILEL molla. 1905.

No. 833,490. MT1-:MED OCT. 1'6, 190e. s. H. sTo-LTZFUS a. A. s. WOLF.

DUST GLLECTOR. APLwATIoN FILED DBO. 12. 1905.

3 SHEETS-SHEET 3.

Y [NVE/WOM I/V/TNESSES.-

A TTORN YS v No. scanso;

SYLVANUS HARGLD STOLTZF s `AAnn ARTHUR sinner weer, or

Cl-iAh/BERSBURG, PENNSYLVANlA.

To whom, it moby concern:

Beitknown that We, SYLvANUs HAROLD S'ro'nrzrus and ARTHR'SAMUEL WOLF,citi zens of the United States, residing at Chamn bershurg, in thecounty 'ot Franklin and.

State oi Pennsylvania, have invented a new' and useful Dust-Collector,of which the iollowing is a'specification.

. agitating the filtering-bags try with the conveyor-box to loosen thedust.

'This invention relates to dust-collectors'o'f thchalloon ty e, in whicha plurality of series oi iiltering-tu es are supported annuiarly in i arotary membenisaid member being intermittently'rotated to place theseries of ltering-hags in succession in registry with a con'- vever-box,mechanism being provided for that are in regisadhering thereto and tocause it to drop into Among the ohjectsoi'v the present invention are tocombine the advantages of what is known as a Cyclone dustcollector withthose of a dustfcollector in which the air 1s i vcaused to pass throughtubular filtering-A durability, and general prior to the passage of theairto the iiltering bags in-a simple and improved manner. Furtherobjects are to promote sim eiiiciency in t ie con struction of themachine. f

` With these and other ends in view, Which will readily vappear as thenature of the -in vvention is better understood, the same consists inthe improved construction and novel tion, partly in section,

. arrangement and combination of parts, which will be hereinafter fullydescribed,'and particularly pointed out in the claims. l In theaccompanying drawings has been illustrated asimple andpreferredforni.ci1 the invention, it being, however, understood that nolimitation is necessarily made to the precise structural detailsthereinexhihited, ut that changes, alterations, and modiiications Withinthe scope oi the invention may be resorted to when desired. In thedrawings', 'Figure l is aside elevaoia dust-collector constructed inaccordance with the principles oi the invention. Fig. '2 is a vertical'sectional view taken ong-the plane lindicated. Fig. Sis adetail by theline 2 2 in 1.

Specification of Letters Patent. i Application lilediDecenibur 12,1905..

view of an expansiblepacking-rin lters of reference.

vside of the casing at agay,

. ing andr into .a trough containing conveyor 7', whereby the' dust isdlscharged yhearings for the nusTfooL-Lsoroe.

estadistica. 1e, i'eoe- Serial No. 29Ld59. i

used in connection with this invention. ig., 4 is-a det ail plan view cithe mechanism for rotating the filtering-drums.' Fig is a sectionaldetail view, on an enlarged scale, illustrating the connection with the:lilteringdrum of one vci the filtering tubes or bags.

Corresponding parts iv the several iigures are indicated 'througl'ioutby similar charac- The frame of the machine includes side members 1 l,intermediately between which are disposedk the eide members 2 Z ofthecasing C, which is of approximate inverted ovate shape, said casing eingintersected at its uplper end by a u'e 3, the up er Wall of Whic is'approminately'tangentia tothe up'- per portion of the casing.' Thisilue is provided witha closure .4,'Which is concentric with andconstitutes a temporary ortion of the'wall of the casing, said closureeing disposed adjacent to either side ofthe casing and sup orted insucha manner as to maire it intero angeable from one side to the other ofthecasing. The iiue 3 vconstitutes the inlet ior dust-laden air, which isadmitted at the end of the flue which is distant from the su ported.

nteriorly upon the curved Walls ci the casingl are disposedinclincdtroughs or oatfles 5 5, serving to receive thel comparatively heavy dustparticles .which Will How bygravity over the bailesto the bottom of thec asthrough an aperture 8 at one end of the trough.

. Theirame vmembers-r1l 1 and the side members 2 2 of the casing C .are

rotary mem ers or drums D D, the inner ends ci which are open and incommunication with the interior of the casing C, While the outer ends ofthe drums have closures 9, vvhih h have as supported hy means of archedstrapsv 10 from the frame members 1." The inner ends of the drums areprovided With ringsor hoops H, -includingthe bands-11, flanges 12, and

laterally-extending members i3, which latter, engage the hearingfrings Binthe sides 2` of.

the hasing. At the outer ends oi the drums are similar rings or hoopsH,including the handelt', flanges 12',

al spiral rovided with' been illustratedv and laterally-,entendhich theclosure/i is I ing annularmemhers 13, `which latter engage ro annularlser' the bearingsffifii the side members '1 of the driven from" anysuitable source of power. frame. -Upo'n the outer extremities of. theBearings are also provided for a'counter-shaft bearingfmembers 13 areformed ratchet,7'.Av '36,- carrying a spur-wheel 37, meshing with.wheels14. i and driven by a pinion 38 upon the main 5 *he drumsD D arerovided near their' shaft 34. The'counter-shat 36 has cranks 7e innerndbuter ends with) radially-extending 39, provided with wristepins 46,upon which spolie ,which are disposed in pairs around are pivoted pawls41, having 'heeled termi-v the circumference of the drum and which arenal ends 42, which are in gravity engagement connectedjby means of linksor braces 16 in with the ratchet-Wheels 14. The number of The-'spokes 15are providedv teeth upon the latter is equal to the number 75 at theirout '.,tremitieswith reduced'shoulof pairs of spokes radiating from thedrumsdered ortioc. mingdowels 17 for the sup- B, so that at each steplor intermittent lmoveport olcross-ba'rs 13 whereb f the spokesare mentthe drums will be rotated or advanced connected in pairs, saidcross-bars being par-v to an extentie ual to the distance between 15allel to the axes of the drums. Springs 19 the spokes. `Tris movement:may be easilyl 8o,

are coiledupon the dowel members for the f accomplished .during lessthan one-half--say purpose-of forcing thel cross-bars 18 normallycne-iourth-of the rotation ci the shaft'B,

in an outward direction. l owing to the fact that the throwor movementThe liltering tubes or bags 20 are constructof the pawls is considerablyin excess of the 2o ed of textile or other suitable porous andiiexilength of the ratchet-teeth, the drums being 85 ble material intubular shape, and are prefeiat rest during the greater portion of'therotaably made tapering, their outer ends being,A tion of said shaft, andt` e position of the larger than their inner ends. The drums drums atrest being with one set or row of are provided with perforations 21,having iilteringftubes in registri with the trough 28. 2 5 seats'22'forthewire rings or fastening devices Supported slightly below the eeunter-A9o- 23 at the'innerends ofthe tubes. T he latter i shaft 36 is a shaft43, upon which are pivoted are provided at their outer ends withclosures frames, including side members 44, connected j 24, secured,asfby means ci screws 25, to the` at their outer ends by cross-bars 45.The cross-bars18, which, being forced outwardly side member 44 of eachframe is provided 3o iby the action of the springs 19, will serve towith acam 46, lying in the path of the pro- 95 hold the rowsofiiltering-tubes tight and taut.l jection 47 upon the counter-shaitandthe .The stationary heads 9 at the outer ends of? outer frame-bars 45are provided upon their,v the drums D are provided upon their innerunder sides with cushions 48, of rubber or' lsides with flanges orbrackets 26, upon which other suitable material, which are in aline- 5 5are placed springs 27, serving to sup ort al ment with and adapted to en'a e the crossroe trough or casing 28, which is forced lgy the .bars 18,connected with the tu ,iar lterin action of the lspring 27 kupwardlyagainst the bags, which are in registry with the trougi "intcriorof thedrums D, the trough 28 being 28 when the "drums are at rest. The crossof such width that one row of filtering-tubes member 45 o'feach frame isprovided with a .do of each drum may communicate therewith wear-plate49, preferably of steel, which is in m5 when the drums arel stationary.The trough alinement with and adapted to be engaged' 28has a coverportion 29, which maybe sekby a cem member 50. upon themain shaft 34.

curely connected therewith and Cwhich eX- The main shaft 34 carries asprocket-l tends .transversely through the casing C, said Wheel 51,which is disposed in the/same ver`- 4 5 cover portion being of course ofa size nearly tical plane as sprocket-wheels 52 and 53 upony rio f,16o-.lar conveyer 33, whereby it is conducted to In suiii'cientto-constitute a cover for that porthe shafts 54 and 55 of the conveyers7 and tion ofthe trough: 28 whichl extends trans- 32, respectively.These l`several sprocketversely .through the casing C, whichI latter iswheels are connected by a link-belt 56, which not to an appreciableextent obstructed byy also passes over a suitably-supported idler 5osaid trough and cover. Packing, as 30, and .57, Wherebv the conveyors 7and 32,'Wil1 be Iig expansible packing-securing means, as rings drivenin t e'proper .direction directly from 31,- having inwardly-ofisetmembers 31a' lsurthe main sha A rounding the trough 28, are to be suplied' at In'the trough 6 of the conveyer 7, near the all needed foin-tsto mal/re practica l-'y air outer end of the latter and inside of thepoint 55 ytight joints` etween the moving parts ofthe where the dustfrom the upper conveyor en- :zo machine and ytheir bearings orcontact-surters, is a hinged closure lor valve "if, which v faces.Within the trough 28 is supported a serves to prevent the draft of airthrough the spiralbonveyer 32, o erating to discharge theconveyor-trough 6 `from interferingwiththe contents o1? the troug 'atonefend into a tubugravit fall otf'dust frcmthe upper conveyor.

\ l wer part of the casing C, above the 12 5 the eonveyer-trough6`nearthe discharge end tre isi-su port-ed a vertically-disposed ofthe latter;j A de'ecting'member 58, Y-

Theframe of the machine-js provided near lAtth-eend of the'trough 28whichI is dis. itsfupper end with'bearings for the mainshaft tant'fromthe, outlet 33 of said trough is lan fgcfli'gcariying a band-wheel 35,which' maybe aperture 59, from which extends a pipe '60, 13o

' the opposite end of f air-current, and

settle by gravity into which is in. practice contliecasing of a fan, thetendencyo'f Whc is to exhaust air from the trough and which may beA theian that supplies the impure air. to'tlie dustwcollector.

In yoperation the dust-laden `air may he caused to enter into the casingC through eit'her end oi the flue 3, the' closure 4 having previouslybeen adjusted to deiect the air downwardly into the casing .withinwhichit whirls about, the heavier dust particles being thrown ,bycentrifugal force in the direction of the walls of the casing where theyare intercepted by the bailles 5 5 and permitted to the trough 6,containnected with the' e* e oi ing. the screw conveyer 7, whereby it isexj'ielled at one end of the trough. The deilector 5S will serve tointercept the whirling the dustlad'en air deprived ot the heavier andcoarser particles will expand laterally within the drums and iind an noutlet through the porous:filtering-bags upon the inner surfaces ofwhich the iine dust particles will be deposited. In the meantime thedrums will be rotated intermittently by the pawlandratchet mechanismdescribed, the projections 47 upon the shaft 36 being so disposed thatduring the time when the drums are in motion the frames, including themeinbers44 and 45, will be elevated so as to present no obstacle to themovement of the drums. As soon as Athe drums become stationary theprojections 4.7 become disengaged from cams'i, and the frames will thusbe permitted to drop with the cushions 48, impinging upon thecrossJoa-rs 1S, with which they are in alincment. The cams 50 upon themain shalt 34, which. latter rotates much more .rapidly than thecounter-shaft, will new engage the Wear-plates 49 uponthe cross-bars 45,depressing the latter and simultaneously depressing the crossdiars i8against the tension oi the supporting-springs lll. As soon as the cams50 pass out of' engagement with the cross-bars 48 the springs i9 willexpand, forcing the crosslbars 18 suddenly in anvoutward direction, andthus stretching the material ol which the tubular iiltering-bags arecomposed with a sudden snap, which is effective in dislodging theparticles of dust upon the inner surfaces ot said bags, causing the dustto drop into the trough 48, where it is disposed of by the spiralconveyor, which carries it to the con* ducting-pipe 33, whereby it isdelivered into the discharge end oi" the conveyer-trough 6.

As will be seen from the foregoing description, this improved machine isconstructed' with a view to combining within a single structure all theadvantages of that class of dust-collectors which are of the well-knownlyelonc type and. in which-the separation oi' the dust from the air iseil'ected by centrilugal action, owing to the natural tendency of theheavier particles held in susl l l l l l j ber through the axialaperture. l

\ iles upon its inner walls,

l l l pense in a whirling air-current within the casing to move from thecenter oic said current in the direction oi the walls oi' thelcasing andthat class of dust-collectors in which the dustdaden air is strained andpurilied through a iiltering medium which in the present instance iscomposed oi the tubular filtering-ba Havingtli is claimed isj l. in adust-collector, an inverted ovate l settling-chamber having dustatheringbafl' fles upon its inner walls, an axial aperture in one of its sidewalls, and an inlet forvr dustladenA air consisting of a fine with'itsupper wally approximately tangential to the upper 'portieri of thechamber, in combination with l a iiltering-drum su 'ported for rotationadjacent to the side wall and communicating with the settling-chamberthrou h the axial aperture inthe sidewall of sai chamber. 2; in adust-collector, an inverted ovate casing constituting a settling-chamberand l l having dust-gathering balies upon its inner walls and an axialaperture in one side wall, a ilus intersecting the upper part oi thecham.- ber and having an upper wall approximately tangential thereto,and a closure in said liuc l'constituting a part oi the wall of 'thecasing; in combination with a iilteringdruin sup iorted. for rotation.adjacent to the side wall and communicating, with the settling-cham 3.ln a dustcollector, an inverted evatc casing having dustgatlierin gbaiiles upon its inner walls and an axial aperture in one side V wall, ailuc intersecting the upper part oi' the l casing and having an upperwall disposed approximately tangential thereto, and a closure in saidvline movable from one side ci the casing to the other side, incombination with a liltcringdrnm supported for rotation adj a j cent tothe side wall and communicating with the settling-chamber through theaxial aperture.

4. ln a dustcollector, an inverted ovatc settling-chamber havingdust-gathering bai'- an axial aperture in one of its side walls, and aninlet i'or dustladen air consisting of a lflue with its upper wallapproximately tangential to the upper at the lower end oi said trough,and a deilector ture.

exit near its lower end casing being provided with axial apertures, incombination with hollow drums supported us described the invention, whatportion oi' the chamber, a receiving trough the casing, a carrier indisposed vertically above the trough; in combination with a'liltering-drum supported for rotation adj acent to the side wall andcommunicating with the settling-chamber through the axial aper- 5. ln adust-collector, an intermediate settling-chamber having a tangentialinlet for dust-laden air near its upper end and a dustthe side walls oisaid.

FOC'

rings havinglaterall for rotation adjacent to the opposite side Wallsand communicating with the settlingchamber through the axial `aperturesin the side walls, iilterin from the drums, spring-supported means forkeepin the tubes stretched and taut, and means Illor vibrating thetubes.

61 In.a dust-co1lector, a settlingfchamber having an inlet at its upperend for dustladen air and an exit at its lower end for dust, saidchamber being provided with axial apertures in-its opposite side Walls,hollow filter-l ing-drums journaled at'their inner ends in sa1dapertures and' communicating with the Settling chamber therethrough,lbearing.- -extending flanges sup.- ls ofthe drums, closures porting theouter en the drums, and filtering at the outer ends of means connectedwith and carried by thelistter.

7. The combination With an intermediate settling4chamber, of drumssupported for rotation adjacent to the sides of and iri com -tubesextending radially ffor that portion ofthe trough Whic and supportingthe outer end of thev iltering- '3,9

tubes, a dustireceiving trough extending through the drums and thecasing; a-,cover` extends. through the casing, a conveyer insaid troughand means foragitating the springfsupported 35 supporting members of thelterin stubes which. ar'e temporarilyin .alinement .with the'receiving-trough.'

In testimony that WeV claim the 'foregoing Y .as our' own Wel havehereto affixed our-signa.- 4o

tures-iny lthe presence of'two witnesses;

" SYLYANUS HAROLD STOLTZFUS ARTHUR- SMUEL WOLF Witnesses-z i .BERT S..SIERER'y I-L S. BUsEY.-

